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3Com ISDN Modem User Manual

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Part No. 09-0885-001
Published July 1997
3C
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OM
MPACT
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XTERNAL
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SER
IQ
ISDN M
UIDE
ODEM

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Summary of Contents for 3Com ISDN Modem

  • Page 1 MPACT ® ISDN M XTERNAL ODEM UIDE Part No. 09-0885-001 Published July 1997...
  • Page 2 file named LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

  • Page 3: L Imited W Arranty

    The software for the 3ComImpact IQ External ISDN Modem has a 90-day warranty as further specified in the Limited Warranty statement. To ensure the very best 3Com service and support, take the time to register on-line or complete the product registration card.

  • Page 5: Table Of Contents

    Installing Analog Equipment 2-5 Installing the Power Cable 2-7 IBM-C ONFIGURATION FOR AN OMPATIBLE Configuring the 3C882 ISDN Modem for a PC 3-1 Installing the 3C882 Software 3-2 Running the SPID Wizard 3-3 Running the SPID Wizard Again 3-8 Configuring Multilink PPP 3-9 Configuring the B Channel Rate 3-10...
  • Page 6 Setting up 230K for Windows 95 and Windows NT 4.0 3-31 ONFIGURATION FOR AN PPLE ACINTOSH OMPUTER Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-1 Installing the 3C882 Software 4-2 Running the SPID Wizard 4-3 Configuring Multilink PPP 4-7 Configuring the B Channel Rate 4-8 Configuring Voice Call Routing 4-9...
  • Page 7 Monitoring the RD LED 8-3 Monitoring the DTR LED 8-4 Evaluating Symptoms and Solutions 8-4 Microkey Error Codes 8-8 Restoring the 3C882 ISDN Modem to Autobaud 8-9 Using On-Line Help 8-10 Finding More Information 8-10 Downloading Firmware to Your 3C882 ISDN Modem 8-10...
  • Page 8 ESULT ODES AT Command Set B-1 S Registers B-4 Result Codes B-9 PECIFICATIONS 3C882 ISDN Modem Specifications C-1 RS-232 COM Port Pin Specifications C-2 PC Serial Cable Pin Specifications C-3 Macintosh Serial Cable Pin Specifications C-3 ONFIGURATION SING Configuration Using DOS D-1...
  • Page 9 2-1 Installation Steps for the 3C882 ISDN Modem 2-1 2-2 Front Panel LED Indicators 2-2 2-3 Back Panel Connectors 2-2 2-4 Computer to 3C882 ISDN Modem COM Port Connection 2-4 2-5 ISDN Cable Connection 2-5 2-6 Analog Equipment Connection 2-6 2-7 Power Cable Connection 2-7 3-1 Main Configuration Steps for a PC 3-1...
  • Page 10 3-21 Phonebook Entry Screen 3-28 3-22 Server Type Screen 3-28 4-1 3C882 Configuration Steps for a Macintosh 4-1 4-2 Installation Message Box 4-2 4-3 Successful Installation Message Box 4-3 4-4 3ComImpact IQ Program Icon 4-3 4-5 Select Modem Port Screen 4-4 4-6 SPID Wizard Start Screen 4-4 4-7 First Telephone Number Screen for Macintosh 4-5 4-8 Second Telephone Screen for Macintosh 4-6...
  • Page 11 A-5 Line Configuration for Siemens EWSD A-8 B-1 AT Command Set Summary B-2 S Registers B-3 3C882 ISDN Modem Result Codes B-9 C-1 Pin Descriptions C-2 C-2 PC COM Port Cable Pin Assignments C-3 C-3 Macintosh COM Port Cable Pin Assignments C-3...

  • Page 13: About This Guide

    This guide describes how to install, operate, and troubleshoot the 3ComImpact IQ External ISDN Modem, referred to throughout this guide as the 3C882 ISDN modem. Be sure to read the README.TXT or readme files on the applicable software utility diskette for the latest product information.

  • Page 14: Conventions

    BOUT UIDE Conventions Table 1 and Table 2 list text and icon conventions that are used throughout this guide. Table 1 Text Conventions Convention Description Text represented as This typeface is used to represent displays that appear on your terminal screen, for example: screen display NetLogin: Text represented as...

  • Page 15: Introduction

    NTRODUCTION The 3ComImpact IQ External ISDN Modem (referred to as the 3C882 ISDN modem throughout this guide) is an external, stand-alone Integrated Services Digital Network (ISDN) Basic Rate ISDN modem for connection with digital telephone services from local telephone companies in North America.

  • Page 16: 3C882 Isdn Modem Features

    50% compared to V. fast/V.34 analog modem setup times; connection is established in 3 seconds. Setting up the 3C882 ISDN modem takes only 15 minutes. Simply connect the cables, load the software, run the SPID Wizard™, and you are ready to place a call.

  • Page 17: High Performance

    3C882 ISDN Modem Features High Performance hi/fn , version 5, compression, for data throughput of up to 230.4 Kbps, which conforms to these IETF RFC’s: The PPP Compression Control Protocol (1962), and PPP LZS Compression Protocol (1974) An asynchronous RS-232-D data port for connectivity to IBM or compatible PC and Apple Macintosh serial ports at rates of up to 230.4 Kbps...

  • Page 18: 3C882 Isdn Modem Package Contents

    LED status display Test call compatibility Warranty 5-year limited warranty 3C882 ISDN Modem Package Contents The 3C882 ISDN modem package contents contains one each: 3ComImpact IQ External ISDN Modem Power cable with an AC wall transformer RJ -45/RJ -11 ISDN telephone cable...

  • Page 19: Before You Install The 3C882 Isdn Modem

    Instructions RS232 Serial Port Cable Before You Install the 3C882 ISDN Modem To install and use the 3C882 ISDN modem successfully, you must have the following: Correct ISDN service installed at your location with an available ISDN RJ-11 outlet. If you have not ordered ISDN service yet, see Appendix A.

  • Page 20: Ibm Pc Or Compatible Requirements

    For 230.4 Kbps data rate. You will need an enhanced serial port card and COM port driver software that support 230.4 Kbps. For 115.2 Kbps data rate. 3Com recommends that your IBM or IBM-compatible PC serial COM port be equipped with a 16C550 UART (universal asynchronous receiver/transmitter).

  • Page 21: Isdn Information

    Before You Install the 3C882 ISDN Modem ISDN Information Enter your ISDN telephone number(s) in the information sheet shown in Figure 1-2. You will need this information during configuration of the 3C882 ISDN modem. Although the 3C882 ISDN modem automatically configures the ISDN switch type and Service Profile Identifier (SPID)
  • Page 22 1: I HAPTER NTRODUCTION you ordered one ISDN telephone number, write 1. If you ordered two ISDN telephone numbers, write 2. Ordering two ISDN telephone numbers allows you to conduct two simultaneous calls on both analog phone ports. ISDN Telephone Number 1. Write down your ISDN telephone number provided to you by the telephone company ISDN representative.

  • Page 23: Installing The

    3C882 NSTALLING THE ISDN M ODEM This chapter describes installation of the 3C882 ISDN modem for use with an IBM or IBM-compatible PC or an Apple Macintosh computer. This installation procedure assumes that you are familiar with your Apple Macintosh or IBM-compatible computer. If you...

  • Page 24: Familiarizing Yourself With The 3C882 Isdn Modem

    Familiarizing Yourself with the 3C882 ISDN Modem You should familiarize yourself with the components of the front panel and back panel of the 3C882 ISDN modem prior to installation. The LED status display, shown in Figure 2-2, consists of eight front panel LEDs that are described in Table 2-1.

  • Page 25: Installing A Serial Cable

    For a Macintosh computer, you will need a 25-pin male to mini DIN 8-pin male serial cable. Refer to the information enclosed in your 3C882 ISDN modem package to order a free cable. If you are providing your own serial cable, ensure that it meets the pin specifications provided in Appendix C.

  • Page 26: Computer To 3C882 Isdn Modem Com Port Connection

    To install the 3C882 ISDN modem serial cable: 1 Insert the 25-pin male end of a serial signal cable into the RS-232 serial port on the 3C882 ISDN modem’s back panel and tighten the connector screws, as shown in Figure 2-4.

  • Page 27: Installing The Isdn Cable

    To install the ISDN cable: 1 Connect the RJ-45 (8-pin) connector end of the RJ-45/RJ-11 ISDN cable to the RJ-45 ISDN line port labeled ISDN U on the 3C882 ISDN modem’s back panel, as shown in Figure 2-5. I S D - 2 3 .

  • Page 28: Analog Equipment Connection

    3C882 ISDN M HAPTER NSTALLING THE ODEM 1 Insert one RJ-11 connector to a phone port labeled with a telephone icon on the back of the ISDN modem, as shown in Figure 2-6. I S D - 2 3 . 5 A...

  • Page 29: Installing The Power Cable

    Installing the Power Cable To install the power cable: 1 Connect the 3C882 ISDN modem power cable to the 9 VDC power connector on the back panel of the ISDN modem, as shown in Figure 2-7. I S D - 2 3 .
  • Page 30 3C882 ISDN M HAPTER NSTALLING THE ODEM This completes the 3C882 ISDN modem installation. Refer to the appropriate chapter to configure the 3C882 ISDN modem; either Chapter 3, “Configuration for an IBM-Compatible PC Running Windows,”or Chapter 4, “Configuration for an Apple Macintosh Computer.”...

  • Page 31: Configuration For An

    ONFIGURATION FOR AN IBM-C OMPATIBLE UNNING INDOWS This chapter describes the 3C882 ISDN modem configuration for use with the Windows operating system. Main topics are as follows: Configuring the 3C882 ISDN modem Setup using Windows 95 Setup using Windows NT 3.5.1 Setup using Windows NT 4.0...

  • Page 32: Installing The 3C882 Software

    UNNING INDOWS Installing the 3C882 Software To install the 3C882 ISDN modem software: 1 Insert the 3ComImpact IQ Windows Installation Diagnostic Utilities diskette into an available floppy drive. 2 If you are using Windows 95, select Run from the Start menu.

  • Page 33: Running The Spid Wizard

    Configuring the 3C882 ISDN Modem for a PC 4 Click Next to continue the installation. You will then be prompted to choose the directory in which to install the software. 5 If you would like to designate a directory other than the default directory, click Browse to do so.

  • Page 34: Comimpact Iq Globe Icon

    3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS 1 Double-click the 3ComImpact IQ icon shown in Figure 3-4. Figure 3-4 3ComImpact IQ Globe Icon You will see a start message, as shown in Figure 3-5. Figure 3-5 SPID Wizard Start Message for PC If you do not want to run the SPID Wizard, click Cancel to configure your values manually via the configuration dialog box (see Figure 3-9).

  • Page 35: First Telephone Number Dialog Box For Pc

    Figure 3-6 First Telephone Number Dialog Box for PC 2 Enter the first telephone number for your ISDN line. 3 Click Next. A message appears, indicating that the 3C882 ISDN modem is detecting the SPID for the first telephone number.

  • Page 36: Second Telephone Number Dialog Box For Pc

    3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS After the SPID is configured, the dialog box shown in Figure 3-7 appears. Figure 3-7 Second Telephone Number Dialog Box for PC 4 If you have a second telephone number for your ISDN line, enter it, and then click Next.

  • Page 37: Configuration Dialog Box For Pc

    Configuring the 3C882 ISDN Modem for a PC 5 Click Finish. The on-line registration dialog box appears. Enter your information and then click Register Now. After your information is received, the Successful Registration dialog box will open. 6 Click OK.

  • Page 38: Running The Spid Wizard Again

    The SPID Wizard automatically runs when you are configuring the 3C882 ISDN modem for the first time, if you connect the 3C882 ISDN modem to a different ISDN line, or if your ISDN line parameters should change (e.g., your area...

  • Page 39: Configuring Multilink Ppp

    Configuring the 3C882 ISDN Modem for a PC SPID(s) are configured, clicking on the 3ComImpact IQ globe icon will thereafter display the Configuration dialog box. If you add a second telephone number to your ISDN line after you run the SPID Wizard, you can use the SPID Wizard to detect the SPID for your second telephone number.

  • Page 40: Configuring The B Channel Rate

    2 Click the Update button to download the change to your 3C882 ISDN modem’s S register. Configuring Voice Call Routing The 3C882 ISDN modem allows you to assign a specific telephone number to a specified analog phone port. By default, telephone number 1 is assigned to phone port one, and telephone number 2 is assigned to phone port two, as shown in Figure 3-10.

  • Page 41: Voice Call Routing Default Setting

    Configuring the 3C882 ISDN Modem for a PC 3-11 have both a telephone and a fax machine connected to your 3C882 ISDN modem’s analog ports. I S D - 2 3 • 5 A 908 555 1212 908 555 1213...

  • Page 42: Configuration For One Telephone Number And Two Devices

    3-12 3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS Note that while you are using the fax machine, for example, you cannot use the telephone to place or receive calls because your ISDN line has only one telephone number. I S D - 2 3 •...

  • Page 43: Verifying The Configuration

    Check the status bar located toward the bottom of the Configuration dialog box. If the parameters were configured accurately and the 3C882 ISDN modem is ready to send and receive calls, the status bar fields will appear as shown here.
  • Page 44 For information regarding configuration of the 3C882 ISDN modem with various Internet access software not included in this User Guide, use the 3Com fax service (1) (408) 727-7021 (analog) in the U.S. or visit 3Com’s World Wide Web site at http://www.3Com.com/.

  • Page 45: Setup Using Windows 95

    Setup Using Windows 95 3-15 Setup Using Windows 95 This section describes how to set up the 3C882 ISDN modem using Windows 95 Plug and Play. These instructions assume that Windows 95, Microsoft Plus!, and the 3C882 ISDN modem software have already been installed.

  • Page 46: Install From Disk Dialog Box

    3-16 3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS The Install From Disk dialog box appears, as shown in Figure 3-14. Figure 3-14 Install From Disk Dialog Box 4 Insert the 3ComImpact IQ Windows Installation Diagnostic Utilities diskette into an available floppy drive.

  • Page 47: Setup Using Windows Nt 3.5.1 Ras

    7 Select 3ComImpact IQ for baud rates of up to 115.2Kbps and click Next. The 3C882 ISDN modem allows for transfer rates of up to 230.4 Kbps. However, some computers require the installation of additional hardware, such as an accelerated serial port card, to take advantage of this higher speed.

  • Page 48: Network Settings Dialog Box

    ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS 2 Copy the 3C882 ISDN modem MODEM.INF file to the same directory as the MODEM.ORG file. 3 From the main menu, select Control Panel, and then select Network. The Network Settings dialog box appears, as shown in Figure 3-16.

  • Page 49: Remote Access Setup Dialog Box

    9 Select 3ComImpact IQ for baud rates up to 115.2 Kbps and then specify the port usage. Click OK. The 3C882 ISDN modem allows for transfer rates of up to 230.4 Kbps. However, some computers require the installation of additional hardware, such as an accelerated serial port card, to take advantage of this higher speed.

  • Page 50: Setup For Windows

    Chapter 7, “Placing and Receiving Calls”. Setup for Windows NT 4.0 This section describes how to set up the 3C882 ISDN modem using Windows NT 4.0. Note that these instructions assume that the 3C882 ISDN modem software has already been installed.

  • Page 51: Install New Modems Dialog Box

    Setup for Windows NT 4.0 3-21 Figure 3-18 Install New Modems Dialog Box 4 Check Don’t detect my modem, I will select it from a list and click Next.

  • Page 52: Modem Manufacturers And Models Dialog Box

    The New Modem Manufacture screen will open, as shown in Figure 3-19. Figure 3-19 Modem Manufacturers and Models Dialog Box You will only see a 3Com entry if you have previously installed a 3Com modem. 5 Click Have Disk. 6 Select 3ComImpact IQ for baud rates of up to 115.2K and click Next.

  • Page 53: Configure Dial-Up Networking

    Configure Dial-Up Networking 3-23 A dialog box indicates successful setup. 9 Click Finish. This completes the setup procedure for Windows NT 4.0. Refer to “Configure Dial-Up Networking” below to setup a remote access configuration, or continue on to Chapter 5, “Advanced Configuration,”...

  • Page 54: Running The Internet Set-Up Wizard

    3-24 3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS If you have not already set up the modem for 230K, refer to “Setup for 230Kbps” for assistance. 5 Click Configure. The 3ComImpact IQ Properties window opens. 6 Select the appropriate COM port and maximum speed available for your computer.
  • Page 55 Configure Dial-Up Networking 3-25 Subnet Mask (if required) Primary and Alternate DNS Server address To send and receive e-mail through the Internet: E-mail address Mail server address To run the Internet Set-Up Wizard, do the following: The Internet Set-Up Wizard procedure may vary depending on your particular version of Windows 95.

  • Page 56: Dial-Up Networking For Windows

    3-26 3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS The Service Provider dialog box opens. 9 Enter the name of your ISP and click Next. The Phone number dialog box opens. 10 Enter the area code, telephone number and (if necessary) the country code of the location you are dialing.

  • Page 57: New Phonebook Entry Wizard

    Configure Dial-Up Networking 3-27 The New Phonebook Entry screen opens, as shown in Figure 3-20. Figure 3-20 New Phonebook Entry Wizard If you have not yet configured a Dial-Up Networking connection, a message will indicate that your phonebook is empty. Click OK to add an entry. 2 Type a name for your connection, and click Next.

  • Page 58: Phonebook Entry Screen

    3-28 3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS Figure 3-21 Phonebook Entry Screen You now have an opportunity to verify various settings of your Dial-Up Networking connection. 6 Click More, and select “Edit entry and modem properties” . Verify your ISP’s ISDN access number and your modem selection.
  • Page 59 PAP authentication or “Accept Only Encrypted Authentication” for CHAP. 14 Click OK. The 3C882 ISDN modem does not support Microsoft Encrypted Authentication. X.25 is not supported either; therefore, no changes are required on the X.25 screen.

  • Page 60: Setup For 230Kbps

    UNNING INDOWS Setup for 230Kbps The 3C882 ISDN modem allows for transfer rates of up to 230.4 Kbps. Note that some computers require the installation of additional hardware, such as an accelerated serial port card, to take advantage of this higher speed.

  • Page 61: Setting Up 230K For Windows 95 And Windows

    Setup for 230Kbps 3-31 4 From the Main menu, select Control Panel, then select Network. The Network Settings dialog box appears. 5 Click Configure. The Remote Access Setup dialog box appears. 6 Click Configure. 7 Select 3ComImpact IQ 230K. 8 Click OK. 9 Change the setting of your application program to 230400 bps.
  • Page 62 ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS 3C882 ISDN modem. This will set the baud rate to 230.4 Kbps. Once the baud rate is set to a fixed amount you will no longer be able to access the Configuration dialog box to make changes.
  • Page 63 Setup for 230Kbps 3-33 This completes the procedure to change the baud rate to 230.4 Kbps for Windows 95 and Windows NT 4.0. Refer to Chapter 5, “Advanced Configuration,” to review the default settings and ensure that they reflect your preferences. If you prefer not to change the default settings, then go on to Chapter 7, “Placing and Receiving Calls”.
  • Page 64 3-34 3: C IBM-C PC R HAPTER ONFIGURATION FOR AN OMPATIBLE UNNING INDOWS...

  • Page 65: Configuration For An Apple Macintosh Computer

    Configuring Internet access for a Macintosh computer You will need the ISDN telephone numbers from the ISDN Information Sheet you completed in Chapter 1. Configuring the 3C882 ISDN Modem for a Macintosh Computer The main steps are shown in Figure 4-1.

  • Page 66: Installing The 3C882 Software

    PPLE ACINTOSH OMPUTER Installing the 3C882 Software To install the 3C882 ISDN modem software in an Apple Macintosh computer: 1 Insert the 3ComImpact IQ Installer Diagnostic Utilities software utility diskette into the floppy drive and then double-click the 3ComImpact IQ Installer icon.

  • Page 67: Successful Installation Message Box

    Wizard automatically runs when you are configuring the 3C882 ISDN modem for the first time, if you connect the 3C882 ISDN modem to a different ISDN line, or if any of your ISDN line parameters have changed (e.g., an area code). Once the ISDN switch type, telephone number(s) and SPID(s) have been configured, clicking on the 3ComImpact IQ program...

  • Page 68: Select Modem Port Screen

    The Select Modem Port screen appears, as shown in Figure 4-5. Figure 4-5 Select Modem Port Screen 2 Select the port to which the 3C882 ISDN modem is connected and then click OK. The SPID Wizard start screen appears, as shown in Figure 4-6.

  • Page 69: First Telephone Number Screen For Macintosh

    Configuring the 3C882 ISDN Modem for a Macintosh Computer the SPID Wizard is the recommended method for configuring your SPID values. 3 Click Next. The SPID Wizard first checks for ISDN layer 1status, and then configures the switch type. After the switch type is configured, the First Telephone Number dialog box appears, as shown in Figure 4-7.

  • Page 70: Second Telephone Screen For Macintosh

    4: C HAPTER ONFIGURATION FOR AN PPLE ACINTOSH OMPUTER After the SPID Wizard configures the SPID for the first telephone number, Figure 4-8 appears. Figure 4-8 Second Telephone Screen for Macintosh 5 If you have a second telephone number for your ISDN line, enter it and click Next.

  • Page 71: Configuring Multilink Ppp

    Configuring the 3C882 ISDN Modem for a Macintosh Computer After your information has been sent, the Configuration dialog box appears, as shown in Figure 4-9. Figure 4-9 Configuration Dialog Box for Macintosh The Configuration dialog box buttons do the following.

  • Page 72: Configuring The B Channel Rate

    (disable) or check it (enable). 2 Click the Update Configuration button to download the change to your 3C882 ISDN modem’s S register. Additional configuration may be needed for Multilink PPP. For details refer to S registers 82 and 83 in Appendix B.

  • Page 73: Configuring Voice Call Routing

    Configuring the 3C882 ISDN Modem for a Macintosh Computer Configuring Voice Call Routing The 3C882 ISDN modem allows you to assign a specific telephone number to a specified analog phone port. By default, telephone number 1 is assigned to phone port one, and telephone number 2 is assigned to phone port two, as shown in Figure 4-10.

  • Page 74: Two Telephone Numbers And Two Analog Devices

    4-10 4: C HAPTER ONFIGURATION FOR AN PPLE ACINTOSH OMPUTER Figure 4-11. Calls to that telephone number will ring both devices, allowing you to answer a call using either device. I S D - 2 3 • 5 A 908 555 1212 908 555 1212 Figure 4-11 Configuration for One Telephone Number and Two Devices...

  • Page 75: Verifying The Configuration

    Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-11 Figure 4-12 Configuration to ring both ports simultaneously To change the voice call routing setting: 1 Specify which Phone port should handle the calls associated with Telephone Number 1. 2 If your ISDN line has two telephone numbers, specify which Phone port should handle the calls associated with Telephone Number 2.

  • Page 76: Configuring Internet Access For A Macintosh Computer

    Open Transport (1.1 or higher) with FreePPP Set Up Using OT/PPP and Open Transport This section describes setting up the 3C882 ISDN modem for use with Apple’s Open Transport PPP (OT/PPP) in conjunction with Apple’s Open Transport networking software (version 1.1 or higher).

  • Page 77: Ppp Control Panel

    Configuring Internet Access for a Macintosh Computer 4-13 1 Activate the PPP control panel by choosing the Apple menu, Control Panels and then PPP. The PPP control panel opens as shown in . PPP Control Panel Figure 4-13 2 Configure the PPP control panel as specified by your ISP. 3 Open the Modem control panel by choosing the PPP pull down menu and selecting Modem.

  • Page 78: Ot/Ppp Modem Control Panel

    These CCL scripts were placed in your Extensions folder (located in the System folder) during installation of the 3ComImpact IQ ISDN modem software. If you are using System 7.6 or later, drag these modem script files from the Extensions folder into the Modem Scripts folder (also located in the Extensions folder).

  • Page 79: Tcp/Ip Control Panel

    Configuring Internet Access for a Macintosh Computer 4-15 6 Open the TCP/IP control panel by choosing TCP/IP from the PPP pull down menu. The TCP/IP control panel opens as shown in Figure 4-15. Figure 4-15 TCP/IP Control Panel 7 Choose PPP from the Connect via pop up menu, and Using PPP Server from the Configure menu (or Manually if specified by your ISP).

  • Page 80: Set Up Using Freeppp With Open Transport

    4-16 4: C HAPTER ONFIGURATION FOR AN PPLE ACINTOSH OMPUTER Set Up Using FreePPP with Open Transport FreePPP is a freeware application for accessing the Internet available for use with Apple’s Open Transport networking software (version 1.1 or higher) or MacTCP, Apple’s older networking software.

  • Page 81: Freeppp Account Screen

    Configuring Internet Access for a Macintosh Computer 4-17 The Account screen will open as shown in Figure 4-17. Figure 4-17 FreePPP Account Screen 3 Configure the fields as specified by your Internet service provider. Generally you would enter the name of your ISP as the Server Name.

  • Page 82: Freeppp Connection Screen

    4-18 4: C HAPTER ONFIGURATION FOR AN PPLE ACINTOSH OMPUTER Figure 4-18 FreePPP Connection Screen 5 Choose the maximum COM port rate available for your computer, and then select CTS & RTS (DTR) from the pop up menu, as shown in Figure 4-18. Click OK to return to the FreePPP setup screen.
  • Page 83 Configuring Internet Access for a Macintosh Computer 4-19 7 Choose the port to which your 3ComImpact IQ ISDN modem is attached. Under Modem Init String Settings, click Use: and add . Click OK to return to the FreePPP at&d0 Setup screen. NOTE: You may want to set up unique modem configurations for each dial up Account profile (i.e., one Multilink PPP dial up account and one 64K Single link dial up).

  • Page 84: Freeppp Tcp/Ip Control Panel

    4-20 4: C HAPTER ONFIGURATION FOR AN PPLE ACINTOSH OMPUTER Figure 4-20 FreePPP TCP/IP Control Panel 9 Choose FreePPP from the Connect via pop up menu. 10 Choose Using PPP Server from the Configure menu (or Manually if specified by your ISP). Enter the Name Server Address(es) as directed by your ISP, and the appropriate Search Domain(s) if required.

  • Page 85: Advanced Configuration

    DVANCED ONFIGURATION This chapter presents information to guide you through advanced configuration options available for the 3C882 ISDN modem. Advanced Configuration Parameter Default Values To change advanced configuration parameter values, you will need terminal emulation software which will allow you to use AT commands.
  • Page 86 Multilink PPP call is maintained. If you are on the receiving end of a Multilink PPP call (i.e., someone has dialed into your 3C882 ISDN modem) and you place a voice call, one of the B channels will still be allocated for the new voice call.

  • Page 87: Auto Answer

    When Auto Answer is disabled (S0=0, by default), a RING message is delivered to the RS-232 serial port upon reception of an incoming data call to the 3C882 ISDN modem. Enter the command to answer the incoming data call. A...

  • Page 88: Changing The Parameter Settings

    To change parameter settings: 1 Launch your communications or terminal emulation software. 2 Be sure the 3C882 ISDN modem is in command mode (sometimes called local mode or terminal mode) so that it interprets your commands. When powered on, the 3C882 ISDN modem automatically starts in command mode.

  • Page 89: Changing Default Settings

    S register 63, you would type AT S63? and then press [Enter] or [Return]. After completing its tasks, the 3C882 ISDN modem sends a message to the screen followed by a result code. Refer to Appendix B for a complete list of result codes.
  • Page 90 5: A HAPTER DVANCED ONFIGURATION...

  • Page 91: Supplementary Voice

    The ISDN modem passively supports Call Forwarding. If you subscribe to this service, which you must order separately from your telephone company, you can enter the appropriate command from the analog telephone attached to your ISDN modem and it will be passed through. Your...

  • Page 92: Isdn Call Waiting

    OICE EATURES telephone company should provide the appropriate commands. The 3C882 ISDN modem will announce a forwarded call by producing a short ring on the telephone that is routed to the forwarded number. ISDN Call Waiting ISDN Call Waiting allows you to place a voice call on hold while you answer an incoming voice call.

  • Page 93: Call Conference

    Result Codes” for the appropriate values. Troubleshooting What if the call is busy? The 3C882 ISDN modem supports two simultaneous voice calls per voice port. If you already have two calls up (e.g., one active and one on hold), any incoming calls will be rejected (i.e., the caller hears a busy...

  • Page 94: Call Drop

    6: S HAPTER UPPLEMENTARY OICE EATURES Table 6-2 How to Use Call Conference How Do I Do This Abort the second dial and switch If the dialed party is busy, press and release the switch back to the first call? hook button to cancel the call and reconnect you to the first call.

  • Page 95: Isdn Service From Pacific Bell

    Call Drop, Call Conference and Call Transfer key values. 2 Launch your terminal emulation software. You will need to change the values of S registers 77, 78, and 3 Send the following command to the 3C882 ISDN modem: AT S77=x S78=x 79=x (where is the key value supplied by Pacific Bell) and press...
  • Page 96 6: S HAPTER UPPLEMENTARY OICE EATURES This completes the procedure for Pacific Bell ISDN users. Refer to Chapter 5, “Changing the Parameter Settings” or Appendix B, “AT Commands, S Registers, and Result Codes” for further assistance.

  • Page 97: Placing And Receiving Calls

    ECEIVING ALLS This chapter illustrates how to place and receive a variety of calls with your 3C882 ISDN modem. The 3C882 ISDN modem uses AT commands and S registers for call management. This chapter covers the following: Placing ISDN data calls...

  • Page 98: Placing Calls Automatically

    When your computer is powered on, the 3C882 ISDN modem automatically starts in command mode. If you have recently used the 3C882 ISDN modem to make a call and have not yet disconnected, type +++ to switch to command mode.

  • Page 99: Placing Multilink Ppp Calls

    For a summary of the AT command set, see Appendix B. 4 Press [Enter] or [Return]. After completing its tasks, the 3C882 ISDN modem sends a message to the screen. An AT command line starts with the characters AT. The...

  • Page 100: Placing A Tollmizer Call

    TollMizer calls may not work properly if placed via long distance carriers. You can select this feature from the 3C882 ISDN modem’s Configuration dialog box. Once enabled, all outgoing ISDN calls will be TollMizer calls. Note that to place calls to devices...

  • Page 101: Receiving Isdn Data Calls

    When Auto Answer is disabled (S0=0, by default), a RING message is delivered to the RS-232 port upon reception of an incoming data call to the 3C882 ISDN modem. Enter the command AT A to answer the incoming data call. A CONNECT message is then delivered to the RS-232 port upon successful connection.

  • Page 102: Placing Voice Calls Using An Analog Phone Port

    CONNECT message, indicating the speed of the connection, is delivered to the RS-232 port. When the 3C882 ISDN modem receives a voice call, the B channel LED(s) flash green and then remain lit once the call is answered. (If you are running Multilink PPP, both B channels flash and then remain lit.)

  • Page 103: Isdn Call Logging

    Conventional, or Analog Caller ID, which requires an additional external device to monitor incoming calls, is not supported by the 3C882 ISDN modem. However, you must have Caller ID enabled on your ISDN line to utilize the Call Logging feature.
  • Page 104 7: P HAPTER LACING AND ECEIVING ALLS This information is cleared upon restarting or power cycling the unit. To clear the Call Logging information manually, use terminal emulation software to enter the command AT\N0. Troubleshooting What if no information is displayed? If you enter AT\N but the Call Logging information is not displayed, you may not have Caller ID provisioned on your ISDN line.

  • Page 105: Troubleshooting

    ROUBLESHOOTING This chapter explains how to isolate and solve problems encountered with the 3C882 ISDN modem. Problems may stem from incorrect option settings or improper installation. Your ISDN line provisioning may also affect your 3C882 ISDN modem’s performance. Refer to Chapter A, “Ordering ISDN Service”...

  • Page 106: Checking The Basics

    3C882 ISDN modem. The 3C882 ISDN modem will not operate if connected to an analog telephone wall jack. Make sure that the 3C882 ISDN modem is connected directly into the ISDN wall outlet...

  • Page 107: Monitoring The D Channel Led

    When flashing, the Receive Data LED indicates that information is being transmitted over the serial data port to the computer from the 3C882 ISDN modem. If this LED flashes and yet you are not able to communicate with the 3C882 ISDN modem, you may be attempting to...

  • Page 108: Monitoring The Dtr Led

    “Evaluating Symptoms and Solutions” below. Monitoring the DTR LED When illuminated, the Data Terminal Ready LED indicates that communication between the 3C882 ISDN modem and your computer has been established. If the DTR LED does not illuminate, refer to “Evaluating Symptoms and Solutions”...
  • Page 109 Evaluating Symptoms and Solutions Table 8-1 Symptoms, Causes, and Solutions Symptom Possible Cause Solution Calls cannot be If you cannot place a call, Call the telephone company to verify placed from analog there may be a problem with that your line is configured for equipment the configuration of your ISDN circuit-switched voice and data...
  • Page 110 (i.e., Autobaud is COM port setting of either your lights disabled). computer or the ISDN modem so that both devices are set to the same COM port rate. Cannot place or Your ISDN line has not been Check your ISDN line provisioning.
  • Page 111 Table 8-1 Symptoms, Causes, and Solutions Symptom Possible Cause Solution ISDN Call Waiting ISDN Call Waiting is disabled. ISDN Call waiting is disabled on Port 2 does not work. by default (S76=1). Use terminal emulation software to change S76 to the appropriate value.

  • Page 112: Microkey Error Codes

    Possible Cause Solution 1001 Cannot find or copy the file Check the 3COM directory and s7comm.drv. reinstall the 3C882 ISDN modem software. 1002 Cannot find or copy the file Check the 3COM directory and s7vcd.drv. reinstall the 3C882 ISDN modem software.

  • Page 113: Restoring The 3C882 Isdn Modem To Autobaud

    1200 baud. 2 Power up the 3C882 ISDN modem and observe the LEDs. When the Test LED goes off, observe the B1 and B2 LED lights. These LEDs should flash momentarily. Immediately type the letter “a”...

  • Page 114: Using On-Line Help

    3ComImpact IQ Help. Finding More Information For more information about the 3C882 ISDN modem, such as frequently asked questions and specific technical notes, refer to the enclosed Technical Support card for contact information, use 3Com’s fax service (1) (408) 727-7021 in the...

  • Page 115: Ordering Isdn Service

    ERVICE This appendix describes how to order ISDN service. If you are ordering ISDN for the first time, you may either have 3Com order ISDN service for you, free of charge, or you may choose to call your telephone company and order ISDN yourself.
  • Page 116 4 Specify the optional Supplementary Voice Features that you would like to utilize on your ISDN line. To take full advantage of the 3C882 ISDN modem, you need to add Flexible Calling (FCO) features: 3-Way Calling (Call Conference); Call Transfer, Hold, and Drop; Caller ID (which is necessary to utilize the Call Logging feature);...

  • Page 117: What Do I Need To Support Supplementary Voice Features

    What Do I Need To Support Supplementary Voice Features? Some telephone companies may choose to refer to the Flexible Calling features by unique terminology. Refer to “What Do I Need To Support Supplementary Voice Features?” on page A-3 for more information; additionally, Chapter 6, “Supplementary Voice Features”...

  • Page 118: Isdn Line Parameter Tables

    * Conventional, or analog Caller ID, which requires an external device to monitor incoming calls, is not supported by the 3C882 ISDN modem. However, you must have Caller ID enabled on your ISDN line to utilize the Call Logging feature.

  • Page 119: At&T 5Ess Switch Ni1

    ISDN Line Parameter Tables AT&T 5ESS Switch NI1 To order ISDN service for the AT&T® 5ESS switch, supply the telephone company with the information provided in Table A-2. Table A-2 Line Configuration for AT&T 5ESS NI1 Required Information Specification Line Type Standard (2B+D) National ISDN-1 line Line Code 2B1Q...

  • Page 120: At&T 5Ess Custom Switch

    1, the ISDN line can only place or receive one call at a time. † Flexible Calling (FCO) provides 3-Way Calling (Call Conference), Hold, Drop, and Transfer from analog equipment attached to the modem. The 3C882 ISDN modem does not support FCO for use with an AT&T 5ESS Custom Switch.

  • Page 121: Northerntelecomdms 100 Switch

    ISDN Line Parameter Tables NorthernTelecomDMS 100 Switch To order ISDN service for the Northern Telecom® DMS 100 switch, photocopy and fax Table A-4 to the telephone company. Some telephone companies will only provision one analog voice port on a DMS 100 switch. Check with your telephone company for additional line provisioning information.

  • Page 122: Siemens Ewsd Switch

    A: O ISDN S PPENDIX RDERING ERVICE **Caller ID is necessary.to employ the Call Logging feature. If you would like to have Call Logging, you must order Caller ID. However, Caller ID itself, which requires an external device to monitor incoming calls, is not supported.

  • Page 123: At Command Set

    AT C OMMANDS EGISTERS ESULT ODES The 3C882 ISDN modem AT commands are summarized in Table B-1, S registers in Table B-2, and result codes in Table B-3. AT Command Set Table B-1 summarizes the AT command set for the 3C882 ISDN modem.
  • Page 124 \N0 will clear this information. Enter connect state (AT O) Causes the ISDN modem to go out of command mode into on-line mode. Result code control (AT Q0) Q0 enables the output of result codes (default).
  • Page 125 W2 displays ISDN data rate only &W Stores configuration (AT &W) Stores the configuration of all S registers that are not part of the ISDN modem initial configuration set. Reset (AT Z) Disconnects all calls in progress and performs a complete ISDN modem system reset.

  • Page 126: S Registers

    Indicates the status of the first TEI using SPID 1. This field is read-only. 0 — ISDN modem has not attempted initialization 1 — ISDN modem has initialized successfully using SPID 1 2 — ISDN modem has failed initialization using SPID 1...
  • Page 127 This field is read-only. 0 — ISDN modem has not attempted initialization 1 — ISDN modem has initialized successfully using SPID 2 2 — ISDN modem has failed initialization using SPID 2 U Interface Status: This field is read-only.

  • Page 128: At Commands , S Registers , And Result Codes

    B: AT C , S R PPENDIX OMMANDS EGISTERS ESULT ODES Table B-2 S Registers (continued) Registers Descriptions Voice Call Routing 0 — Calls to either analog port are blocked 1 — Phone #1 to Phone port 1 only; Phone #2 calls blocked 2 —...
  • Page 129 248 — Maximum frame size of 248 (for AdTran compatibility, use 253) Connection Delay: Specifies whether the ISDN modem immediately answers a call or waits 2 seconds to answer. If you are using Windows NT, use the two-second delay. 0 — No delay (default) 1 —...
  • Page 130 * The values of these S registers are stored in nonvolatile memory and will not be cleared or returned to the default value if the ISDN modem is powered down. † Users of Pacific Bell ISDN service may need to set S registers 77, 78, and 79 to specific values.

  • Page 131: Result Codes

    Result Codes Result Codes Table B-3 lists the 3C882 ISDN modem result codes. Table B-3 3C882 ISDN Modem Result Codes Short Form Long Form Meaning Indicates that the most recent command or action was successfully completed. RING Indicates that an incoming call is present and no AT Answer command is outstanding.
  • Page 132 B-10 B: AT C , S R PPENDIX OMMANDS EGISTERS ESULT ODES...

  • Page 133: Specifications

    PECIFICATIONS This appendix describes the physical specifications of the 3C882 ISDN modem and provides the pin assignments of the RS-232 COM port, PC serial cable, and Macintosh serial cable. 3C882 ISDN Modem Specifications Network Interface Integrated Services Digital Network (ISDN) Basic Rate...

  • Page 134: Rs-232 Com Port Pin Specifications

    RS-232 COM Port Pin Specifications The asynchronous RS-232-D COM port on the 3C882 ISDN modem, labeled RS-232, is a standard DB-25 female connector. The 3C882 ISDN modem asynchronous port pin assignments, shown in Table C-1, conform to standard definitions for data communications equipment (DCE).

  • Page 135: Pc Serial Cable Pin Specifications

    PC Serial Cable Pin Specifications PC Serial Cable Pin Specifications The DB-25 male to DB-9 female pin assignments for the PC serial cable are provided in Table C-2. Table C-2 PC COM Port Cable Pin Assignments DB9 Pin # Pin Name DB25 Pin # Data Carrier Detect (DCD) Receive Data (RD)
  • Page 136 C: S PPENDIX PECIFICATIONS...

  • Page 137: Onfiguration Sing Dos

    ONFIGURATION SING Configuration Using DOS To configure the 3C882 ISDN modem for an IBM PC or compatible computer using DOS, follow these steps. You will need the ISDN Information Sheet you completed in Chapter 1. 1 Create a directory on the hard drive, and then insert the 3ComImpact DOS Installation Diagnostic Utilities diskette into the floppy drive of the PC.
  • Page 138 COM port. When you select the port, a default standard interrupt (IRQ) associated with that port is automatically chosen. 5 Press [F10] to connect to the 3C882 ISDN modem via the chosen COM port. The Configuration screen appears. 6 Select the ISDN switch type.
  • Page 139 11 Specify which Phone port should handle the calls associated with telephone number one. If you plan to use the 3C882 ISDN modem’s analog Phone ports, you will want to configure voice call routing by assigning telephone numbers to the analog ports. By default, telephone number 1 is assigned to phone port one and telephone number 2 is assigned to phone port 2.
  • Page 140 D: C PPENDIX ONFIGURATION SING...
  • Page 141 B channels to communications servers that have integrated ISDN BRI, PRI, or T1 access lines. AT commands ATtention Codes. AT commands are used to configure and operate the 3C882 ISDN modem. These commands can be sent either automatically or manually through your communications software. Autobaud Automatic baud rate detection.

  • Page 142: Glossary

    D channel The signaling channel on an ISDN line used to carry messages between the 3C882 ISDN modem and the public switch. Dynamic bandwidth allocation. DBA is a method of reallocating bandwidth (such as a B channel) automatically.
  • Page 143 LOSSARY Firmware Firmware is the code that resides in the 3C882 ISDN modem and controls its behavior. It differs from software in the form of programs that run on your computer. ISDN Integrated Services Digital Network. ISDN provides a digital...
  • Page 144 North America. Network terminator (NT1) A device that terminates the ISDN line. The NT1 is built into the 3C882 ISDN modem. Password Authentication Protocol. PAP is one of two PPP authentication protocols; CHAP is the other. An authentication protocol requests information to verify a valid user.
  • Page 145 LOSSARY TollMizer Allows you to place a data call over a voice channel, saving the extra cost of the data channel. Your telephone company, ISP, and the device into which you are calling must all support this feature. V.120 A rate adaption scheme that converts transmission rates from a range of 300 bps to 115.2 Kbps to the B channel 56 Kbps or 64 Kbps rate.
  • Page 146 LOSSARY...
  • Page 147 Numerics 3C882 specifications C-1 advanced configuration parameters 5-1 analog equipment installation 2-5 analog port placing calls 7-6 receiving calls 7-6 Apple Macintosh requirements 1-6 Async-Sync PPP 1-3 AT commands list B-1 placing an ISDN data call 7-2 setting 5-4 AT&T 5ESS Custom switch A-6 AT&T 5ESS NI1 switch A-5 Auto Answer 5-3 Autobaud 5-3...
  • Page 148 analog ports for PC using DOS D-3 analog ports for PC using Windows 3-13 Call Transfer 6-4 Call Waiting Troubleshooting 8-7 Caller ID. See ISDN Call Logging Challenge Handshake Authentication Protocol (CHAP) 1-4 changing parameter settings 5-4 COM port connection 2-4 pinout specifications C-2 compression 5-3 configuration...
  • Page 149 receiving 7-5 Data Over Voice. See TollMizer Data Terminal Ready LED 2-3 Dial-Up Networking Windows 95 3-23 Windows NT 4.0 3-26 DTR LED monitoring 8-4 dynamic bandwidth allocation (DBA) 5-2 dynamic bandwith allocation (DBA) Troubleshooting 8-7 environmental operating range C-1 front panel components 2-2 LED indicator definitions 2-2...
  • Page 150 Windows NT 4.0 setup 3-20 Internet Setup Wizard 3-24 ISDN 1-1 Information Sheet 1-7 ordering service for AT&T 5ESS Custom A-6 for AT&T 5ESS NI1 A-5 for Northern Telecom DMS 100 A-7 for Siemens EWSD A-8 placing data calls 7-1 receiving data calls 7-5 ISDN cable installation 2-5 ISDN Call Logging 7-7...
  • Page 151 ordering ISDN service for AT&T 5ESS Custom A-6 for AT&T 5ESS NI1 A-5 for Northern Telecom DMS 100 A-7 for Siemens EWSD A-8 package contents 1-4 parameter settings changing 5-4 Password Authentication Protocol (PAP) 1-4 PC requirements 1-6 Phone port 2-5, 3-10, 4-9 physical dimensions C-1 placing calls 7-1 data 7-1...
  • Page 152 S registers B-4 Self-Test/Status LED 2-2 Send Data (SD) LED monitoring 8-3 Send Data LED 2-3 serial cable installation 2-3 serial port 1-3 connection for Macintosh 2-4 connection for PC 2-4 Siemens EWSD switch A-8 specifications C-1 SPID Wizard 4-3 Switch 56 Permissive.
  • Page 153 Windows NT 3.5.1 3-17 Windows NT 4.0 3-20...
  • Page 155 No updates are provided. 3Com's sole obligation with respect to this express warranty shall be (at 3Com's discretion) to refund the purchase price paid by Customer for any defective software products, or to replace any defective media with software which substantially conforms to 3Com's applicable published specifications.
  • Page 156 CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL...
  • Page 157 The Software is licensed to be used on ONE (1) WORKSTATION owned by or leased to you for use only in connection with a 3ComImpact IQ External ISDN Modem. One (1) copy of the Software may be made for backup or archive purposes in support of your use of the Software on a single workstation.
  • Page 158 ENTIRE AGREEMENT: This License Agreement sets forth the entire understanding and agreement between you and 3Com and may be amended only in a writing signed by both parties. 3Com is a registered trademark of 3Com Corporation.
  • Page 159 This booklet is available from the U.S. Government Printing Office, Washington, D.C. 20402. Stock No. 004-000-00345-4. NOTE: In order to maintain compliance with the limits of a Class B digital device, 3Com requires that you use quality interface cables when connecting to this device. Changes or modifications not expressly approved by 3Com could void the user’s authority to operate this equipment.
  • Page 160 CANADIAN NOTICE The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operation, and safety requirements. The Department does not guarantee the equipment will operate to the users’ satisfaction. Before installing this equipment, users should ensure that is permissible to be connected to the facilities of the local telecommunications company.

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